Face shield



FIG. 1 is a perspective view of a face shield showing my new design, the details shown in broken lines are for illustrative purposes only and form no part of the claimed design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof. 

The ornamental design for a face shield, as shown and described. 